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New Member

Block Malicious Calls (CCM4.1)

Does Callmanager have a feature to block malicious calls,based on the calling number? If the answer is yes, how can I do the settings?

  • IP Telephony
17 REPLIES
Silver

Re: Block Malicious Calls (CCM4.1)

Do you mean internal Calls or Calls from PSTN?

which Gateway Protocol are you using: h323 or MGCP?

Re: Block Malicious Calls (CCM4.1)

Yes, CCM has this feature, take a look to the following document:

http://www.cisco.com/univercd/cc/td/doc/product/voice/c_callmg/4_1/sys_ad/4_1_3/ccmfeat/fsmcid.htm

HTH

//Jorge

New Member

Re: Block Malicious Calls (CCM4.1)

Thanks a lot.But as far as I know,this feature just send an alarm or a notification.Is this feature able to block a call?

Re: Block Malicious Calls (CCM4.1)

Correct, this feature flags teh call in the call detail record database and instructs the gateway to send a message to the public switched telephone network, allowing the service provider to take appropriate action. MCID is supported only on NET5 switches and must be enabled by the service provider.

//Jorge

New Member

Re: Block Malicious Calls (CCM4.1)

it's not easy, but i did it, even though I was informed it was not possible. you can't do it from callmanager, you have to involve your gateway/router.

1. create a translation-rule for matching patterns (the number you want to block)

2. create a translation-profile and add the rule(s) to it.

3. assign the translation-profile to the dial-peer for all your incoming calls.

I guess it does depend on what router you use as to how the commands go, i use a 3825. if you have trouble figuring it out, i can try to lay out some commands for you.

Gold

Re: Block Malicious Calls (CCM4.1)

Here you are actually doing it on the Gateway (H323 Gateway specifically). This has always been possible. But having CallManager based on the Calling Number, is not possible as of now.

New Member

Re: Block Malicious Calls (CCM4.1)

...just as i said. thanks for clarifying. but it gets the job done and that's what he wants to do, right?

New Member

Re: Block Malicious Calls (CCM4.1)

Thank you so much!Guys.Doing this by H323 Gateway is acceptable.Could you pls give me a configuration example? It will help me have a better understanding.

New Member

Re: Block Malicious Calls (CCM4.1)

config t

voice translation-rule 1

rule 1 reject /##########/

rule 2 reject /##########/

*where #s is the numbers or patterns you're blocking

config t

voice translation-profile call_block

translate incoming 1 (the 1 references the collection of translation-rules)

config t

here conigure your incoming call dial-peer

dial-peer voice 1 voip (check the running-config if you're not sure what yours is)

call-block translation-profile incoming call_block

that should be it, let me know if you run into any snags.

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